openssl/perl/openssl_bio.xs
Richard Levitte 95ffe86dbc Perl code patch contributed by "Kurt J. Pires" <kjpires@iat.com>
His own words are:

The patch adds no new functionality (other than a simple test package)
to the libraries, but it allows them to be compiled with Perl5.6.0.
It has only been tested under "Red Hat Linux release 7.0 (Guinness)"
with the unpatched verion of OpenSSL 0.9.6 released last September.
2001-02-19 09:29:53 +00:00

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#include "openssl.h"
static int p5_bio_ex_bio_ptr = 0;
static int p5_bio_ex_bio_callback = 0;
static int p5_bio_ex_bio_callback_data = 0;
static long
p5_bio_callback(bio,state,parg,cmd,larg,ret)
BIO *bio;
int state;
char *parg;
int cmd;
long larg;
int ret;
{
int i;
SV *me,*cb;
me = (SV *)BIO_get_ex_data(bio, p5_bio_ex_bio_ptr);
cb = (SV *)BIO_get_ex_data(bio, p5_bio_ex_bio_callback);
if (cb != NULL) {
dSP;
ENTER;
SAVETMPS;
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSVsv(me)));
XPUSHs(sv_2mortal(newSViv(state)));
XPUSHs(sv_2mortal(newSViv(cmd)));
if ((state == BIO_CB_READ) || (state == BIO_CB_WRITE))
XPUSHs(sv_2mortal(newSVpv(parg,larg)));
else
XPUSHs(&PL_sv_undef);
/* ptr one */
XPUSHs(sv_2mortal(newSViv(larg)));
XPUSHs(sv_2mortal(newSViv(ret)));
PUTBACK;
i = perl_call_sv(cb,G_SCALAR);
SPAGAIN;
if (i == 1)
ret = POPi;
else
ret = 1;
PUTBACK;
FREETMPS;
LEAVE;
}
else {
croak("Internal error in p5_bio_callback");
}
return(ret);
}
int
boot_bio(void)
{
p5_bio_ex_bio_ptr = BIO_get_ex_new_index(0, "OpenSSL::BIO", ex_new, NULL, ex_cleanup);
p5_bio_ex_bio_callback = BIO_get_ex_new_index(0, "bio_callback", NULL, NULL, ex_cleanup);
p5_bio_ex_bio_callback_data = BIO_get_ex_new_index(0, "bio_callback_data", NULL, NULL, ex_cleanup);
return(1);
}
MODULE = OpenSSL::BIO PACKAGE = OpenSSL::BIO PREFIX = p5_BIO_
PROTOTYPES: ENABLE
VERSIONCHECK: DISABLE
void
p5_BIO_new_buffer_ssl_connect(...)
PROTOTYPE: ;$
PREINIT:
SSL_CTX *ctx;
BIO *bio;
SV *arg;
PPCODE:
if (items == 1)
arg = ST(0);
else if (items == 2)
arg = ST(1);
else
arg = NULL;
if ((arg == NULL) || !(sv_derived_from(arg,"OpenSSL::SSL::CTX")))
croak("Usage: OpenSSL::BIO::new_buffer_ssl_connect(SSL_CTX)");
else {
IV tmp = SvIV((SV *)SvRV(arg));
ctx = (SSL_CTX *)tmp;
}
EXTEND(sp, 1);
bio = BIO_new_buffer_ssl_connect(ctx);
arg = (SV *)BIO_get_ex_data(bio, p5_bio_ex_bio_ptr);
PUSHs(arg);
void
p5_BIO_new_ssl_connect(...)
PROTOTYPE: ;$
PREINIT:
SSL_CTX *ctx;
BIO *bio;
SV *arg;
PPCODE:
if (items == 1)
arg = ST(0);
else if (items == 2)
arg = ST(1);
else
arg = NULL;
if ((arg == NULL) || !(sv_derived_from(arg,"OpenSSL::SSL::CTX")))
croak("Usage: OpenSSL::BIO::new_ssl_connect(SSL_CTX)");
else {
IV tmp = SvIV((SV *)SvRV(arg));
ctx = (SSL_CTX *)tmp;
}
EXTEND(sp,1);
bio = BIO_new_ssl_connect(ctx);
arg = (SV *)BIO_get_ex_data(bio,p5_bio_ex_bio_ptr);
PUSHs(arg);
void
p5_BIO_new(...)
PROTOTYPE: ;$
PREINIT:
BIO *bio;
char *type;
SV *arg;
PPCODE:
pr_name("p5_BIO_new");
if ((items == 1) && SvPOK(ST(0)))
type = SvPV_nolen(ST(0));
else if ((items == 2) && SvPOK(ST(1)))
type = SvPV_nolen(ST(1));
else
croak("Usage: OpenSSL::BIO::new(type)");
EXTEND(sp,1);
if (strcmp(type, "mem") == 0)
bio=BIO_new(BIO_s_mem());
else if (strcmp(type, "socket") == 0)
bio=BIO_new(BIO_s_socket());
else if (strcmp(type, "connect") == 0)
bio=BIO_new(BIO_s_connect());
else if (strcmp(type, "accept") == 0)
bio=BIO_new(BIO_s_accept());
else if (strcmp(type, "fd") == 0)
bio=BIO_new(BIO_s_fd());
else if (strcmp(type, "file") == 0)
bio=BIO_new(BIO_s_file());
else if (strcmp(type, "null") == 0)
bio=BIO_new(BIO_s_null());
else if (strcmp(type, "ssl") == 0)
bio=BIO_new(BIO_f_ssl());
else if (strcmp(type, "buffer") == 0)
bio=BIO_new(BIO_f_buffer());
else
croak("unknown BIO type");
arg = (SV *)BIO_get_ex_data(bio,p5_bio_ex_bio_ptr);
PUSHs(arg);
int
p5_BIO_hostname(bio, name)
BIO *bio;
char *name;
PROTOTYPE: $$
CODE:
RETVAL = BIO_set_conn_hostname(bio, name);
OUTPUT:
RETVAL
int
p5_BIO_set_accept_port(bio, str)
BIO *bio;
char *str;
PROTOTYPE: $$
CODE:
RETVAL = BIO_set_accept_port(bio, str);
OUTPUT:
RETVAL
int
p5_BIO_do_handshake(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = BIO_do_handshake(bio);
OUTPUT:
RETVAL
BIO *
p5_BIO_push(b, bio)
BIO *b;
BIO *bio;
PROTOTYPE: $$
CODE:
/* This reference will be reduced when the reference is
* let go, and then when the BIO_free_all() is called
* inside the OpenSSL library by the BIO with this
* pushed into */
bio->references++;
RETVAL = BIO_push(b, bio);
OUTPUT:
RETVAL
void
p5_BIO_pop(b)
BIO *b
PROTOTYPE: $
PREINIT:
BIO *bio;
char *type;
SV *arg;
PPCODE:
bio = BIO_pop(b);
if (bio != NULL) {
/* This BIO will either be one created in the
* perl library, in which case it will have a perl
* SV, otherwise it will have been created internally,
* inside OpenSSL. For the 'pushed in', it needs
* the reference count decremented. */
arg = (SV *)BIO_get_ex_data(bio, p5_bio_ex_bio_ptr);
if (arg == NULL) {
arg = new_ref("OpenSSL::BIO",(char *)bio,0);
BIO_set_ex_data(bio, p5_bio_ex_bio_ptr, (char *)arg);
PUSHs(arg);
}
else {
/* it was pushed in */
SvREFCNT_inc(arg);
PUSHs(arg);
}
}
int
p5_BIO_sysread(bio, in, num, ...)
BIO *bio;
SV *in;
int num;
PROTOTYPE: $$$;
PREINIT:
int i,n,olen;
int offset;
char *p;
CODE:
offset = 0;
if (!SvPOK(in))
sv_setpvn(in, "", 0);
SvPV(in, olen);
if (items > 3) {
offset = SvIV(ST(3));
if (offset < 0) {
if (-offset > olen)
croak("Offset outside string");
offset+=olen;
}
}
if ((num+offset) > olen) {
SvGROW(in, num+offset+1);
p=SvPV(in, i);
memset(&(p[olen]), 0, (num+offset)-olen+1);
}
p = SvPV(in,n);
i = BIO_read(bio, p+offset, num);
RETVAL = i;
if (i <= 0)
i = 0;
SvCUR_set(in, offset+i);
OUTPUT:
RETVAL
int
p5_BIO_syswrite(bio, in, ...)
BIO *bio;
SV *in;
PROTOTYPE: $$;
PREINIT:
char *ptr;
int len,in_len;
int offset=0;
int n;
CODE:
ptr = SvPV(in, in_len);
if (items > 2) {
len = SvOK(ST(2)) ? SvIV(ST(2)) : in_len;
if (items > 3) {
offset = SvIV(ST(3));
if (offset < 0) {
if (-offset > in_len)
croak("Offset outside string");
offset+=in_len;
}
else if ((offset >= in_len) && (in_len > 0))
croak("Offset outside string");
}
if (len >= (in_len-offset))
len = in_len-offset;
}
else
len = in_len;
RETVAL = BIO_write(bio, ptr+offset, len);
OUTPUT:
RETVAL
void
p5_BIO_getline(bio)
BIO *bio;
PROTOTYPE: $
PREINIT:
int i;
char *p;
PPCODE:
pr_name("p5_BIO_gets");
EXTEND(sp, 1);
PUSHs(sv_newmortal());
sv_setpvn(ST(0), "", 0);
SvGROW(ST(0), 1024);
p=SvPV_nolen(ST(0));
i = BIO_gets(bio, p, 1024);
if (i < 0)
i = 0;
SvCUR_set(ST(0), i);
int
p5_BIO_flush(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = BIO_flush(bio);
OUTPUT:
RETVAL
char *
p5_BIO_type(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = bio->method->name;
OUTPUT:
RETVAL
void
p5_BIO_next_bio(b)
BIO *b
PROTOTYPE: $
PREINIT:
BIO *bio;
char *type;
SV *arg;
PPCODE:
bio = b->next_bio;
if (bio != NULL) {
arg = (SV *)BIO_get_ex_data(bio, p5_bio_ex_bio_ptr);
if (arg == NULL) {
arg = new_ref("OpenSSL::BIO", (char *)bio, 0);
BIO_set_ex_data(bio, p5_bio_ex_bio_ptr, (char *)arg);
bio->references++;
PUSHs(arg);
}
else {
SvREFCNT_inc(arg);
PUSHs(arg);
}
}
int
p5_BIO_puts(bio, in)
BIO *bio;
SV *in;
PROTOTYPE: $$
PREINIT:
char *ptr;
CODE:
ptr = SvPV_nolen(in);
RETVAL = BIO_puts(bio, ptr);
OUTPUT:
RETVAL
void
p5_BIO_set_callback(bio, cb,...)
BIO *bio;
SV *cb;
PROTOTYPE: $$;
PREINIT:
SV *arg = NULL;
SV *arg2 = NULL;
CODE:
if (items > 3)
croak("Usage: OpenSSL::BIO::set_callback(bio,callback[,arg]");
if (items == 3) {
arg2 = sv_mortalcopy(ST(2));
SvREFCNT_inc(arg2);
BIO_set_ex_data(bio, p5_bio_ex_bio_callback_data, (char *)arg2);
}
arg = sv_mortalcopy(ST(1));
SvREFCNT_inc(arg);
BIO_set_ex_data(bio, p5_bio_ex_bio_callback, (char *)arg);
/* printf("%08lx < bio_ptr\n",BIO_get_ex_data(bio,p5_bio_ex_bio_ptr)); */
BIO_set_callback(bio, p5_bio_callback);
void
p5_BIO_DESTROY(bio)
BIO *bio
PROTOTYPE: $
PREINIT:
SV *sv;
PPCODE:
pr_name_d("p5_BIO_DESTROY",bio->references);
/* printf("p5_BIO_DESTROY <%s> %d\n",bio->method->name,bio->references); */
BIO_set_ex_data(bio,p5_bio_ex_bio_ptr,NULL);
BIO_free_all(bio);
int
p5_BIO_set_ssl(bio, ssl)
BIO *bio;
SSL *ssl;
PROTOTYPE: $$
CODE:
pr_name("p5_BIO_set_ssl");
ssl->references++;
RETVAL = BIO_set_ssl(bio, ssl, BIO_CLOSE);
OUTPUT:
RETVAL
int
p5_BIO_number_read(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = BIO_number_read(bio);
OUTPUT:
RETVAL
int
p5_BIO_number_written(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = BIO_number_written(bio);
OUTPUT:
RETVAL
int
p5_BIO_references(bio)
BIO *bio;
PROTOTYPE: $
CODE:
RETVAL = bio->references;
OUTPUT:
RETVAL